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949 lines
20 KiB
949 lines
20 KiB
/******************************Module*Header*******************************\
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* Module Name: database.c
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*
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* This module implements the database routines for the CD Audio app.
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* The information is stored in the ini file "cdaudio.ini" which should
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* be located in the nt\windows directory.
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*
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* Warning:
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* These functions ARE NOT THREAD safe.
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* The functions in this file MUST only be called on the UI thread. Before
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* calling any of the functions the CALLER MUST call LockTableOfContents
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* for the specified cdrom device.
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*
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* Author:
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* Rick Turner (ricktu) 31-Jan-1992
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*
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*
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* Revision History:
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*
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* 04-Aug-1992 (ricktu) Incorperated routines from old cdaudio.c,
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* and made work w/new child window framework.
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*
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*
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* Copyright (c) 1993 - 1995 Microsoft Corporation. All rights reserved.
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\**************************************************************************/
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#pragma warning( once : 4201 4214 )
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#define NOOLE
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#include <windows.h>
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#include "playres.h"
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#include "cdapi.h"
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#include "cdplayer.h"
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#include "database.h"
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#include "literals.h"
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#include <string.h>
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#include <stdio.h>
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#include <tchar.h>
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#include "trklst.h"
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#include "..\cdnet\cdnet.h"
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#include "..\cdopt\cdopt.h"
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/* -------------------------------------------------------------------------
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** Private entry points
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** -------------------------------------------------------------------------
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*/
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DWORD
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ComputeOldDiscId(
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int cdrom
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);
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BOOL
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ReadEntry(
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int cdrom,
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DWORD dwId);
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/*****************************Private*Routine******************************\
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* ComputeOldDiscId
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*
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* This routine computes a unique ID based on the information
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* in the table of contexts a given disc.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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DWORD
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ComputeOldDiscId(
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int cdrom
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)
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{
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int NumTracks,i;
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DWORD DiscId = 0;
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NumTracks = g_Devices[ cdrom ]->toc.LastTrack -
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g_Devices[ cdrom ]->toc.FirstTrack;
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for ( i = 0; i < NumTracks; i++ ) {
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DiscId += ( (TRACK_M(cdrom,i) << 16) +
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(TRACK_S(cdrom,i) << 8) +
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TRACK_F(cdrom,i) );
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}
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return DiscId;
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}
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/******************************Public*Routine******************************\
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* ComputeNewDiscId
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*
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* Just call mci to get the product ID.
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*
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* History:
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* dd-mm-94 - StephenE - Created
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*
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\**************************************************************************/
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DWORD
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ComputeNewDiscId(
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int cdrom
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)
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{
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#ifdef USE_IOCTLS
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return ComputeOrgDiscId( cdrom );
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#else
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MCI_INFO_PARMS mciInfo;
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TCHAR szBuffer[32];
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DWORD dwRet;
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mciInfo.lpstrReturn = szBuffer;
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mciInfo.dwRetSize = sizeof(szBuffer)/sizeof(TCHAR);
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dwRet = mciSendCommand( g_Devices[cdrom]->hCd, MCI_INFO,
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MCI_INFO_MEDIA_IDENTITY,
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(DWORD_PTR)(LPVOID)&mciInfo );
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if ( dwRet != MMSYSERR_NOERROR ) {
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return 0L;
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}
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_stscanf(szBuffer, TEXT("%ld"), &dwRet );
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return dwRet;
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#endif
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}
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/*****************************Private*Routine******************************\
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* ComputeOrgDiscId
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*
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* This routine computes a unique ID based on the information
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* in the table of contexts a given disc. This is done by taking
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* the TMSF value for each track and XOR'ing it with the previous
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* quantity shifted left one bit.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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DWORD
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ComputeOrgDiscId(
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int cdrom
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)
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{
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int NumTracks,i;
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DWORD DiscId = 0;
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NumTracks = g_Devices[ cdrom ]->toc.LastTrack -
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g_Devices[ cdrom ]->toc.FirstTrack + 1;
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for ( i = 0; i < NumTracks; i++ ) {
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DiscId = (DiscId << 1) ^
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((i<<24) +
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(TRACK_M(cdrom,i) << 16) +
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(TRACK_S(cdrom,i) << 8) +
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TRACK_F(cdrom,i) );
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}
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return DiscId;
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}
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/*****************************Private*Routine******************************\
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* ErasePlayList
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*
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* Erases the current play list. This includes freeing the memory
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* for the nodes in the play list, and resetting the current track
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* pointer to NULL.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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VOID
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ErasePlayList(
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int cdrom
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)
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{
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PTRACK_PLAY temp, temp1;
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//
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// Free memory for each track in play list
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//
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temp = PLAYLIST( cdrom );
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while (temp!=NULL) {
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temp1 = temp->nextplay;
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LocalFree( (HLOCAL)temp );
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temp = temp1;
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}
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//
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// Reset pointers
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//
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PLAYLIST( cdrom ) = NULL;
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CURRTRACK( cdrom ) = NULL;
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}
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/******************************Public*Routine******************************\
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* EraseSaveList
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*
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* Erases the current save list. This includes freeing the memory
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* for the nodes in the save list.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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VOID
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EraseSaveList(
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int cdrom
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)
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{
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PTRACK_PLAY temp, temp1;
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//
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// Free memory for each track in play list
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//
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temp = SAVELIST( cdrom );
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while ( temp != NULL ) {
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temp1 = temp->nextplay;
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LocalFree( (HLOCAL)temp );
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temp = temp1;
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}
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//
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// Reset pointers
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//
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SAVELIST( cdrom ) = NULL;
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}
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/*****************************Private*Routine******************************\
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* EraseTrackList
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*
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* Erases the current track list. This includes freeing the memory
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* for the nodes in the track list, and resetting the track list
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* pointer to NULL.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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VOID
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EraseTrackList(
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int cdrom
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)
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{
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PTRACK_INF temp, temp1;
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//
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// Free memory for each track in track list
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//
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temp = ALLTRACKS( cdrom );
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while ( temp != NULL ) {
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temp1 = temp->next;
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LocalFree( (HLOCAL)temp );
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temp = temp1;
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}
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//
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// Reset pointers
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//
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ALLTRACKS( cdrom ) = NULL;
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}
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/******************************Public*Routine******************************\
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* CopyPlayList
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*
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* Returns a copy of the playlist pointed to by p.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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PTRACK_PLAY
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CopyPlayList(
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PTRACK_PLAY p
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)
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{
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PTRACK_PLAY t,t1,tend,tret;
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tret = tend = NULL;
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//
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// Duplicate list pointed to by p.
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//
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t = p;
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while( t!=NULL ) {
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t1 = (PTRACK_PLAY)AllocMemory( sizeof(TRACK_PLAY) );
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t1->TocIndex = t->TocIndex;
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t1->min = t->min;
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t1->sec = t->sec;
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t1->nextplay = NULL;
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t1->prevplay = tend;
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if (tret==NULL) {
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tret = tend = t1;
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}
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else {
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tend->nextplay = t1;
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tend = t1;
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}
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t = t->nextplay;
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}
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return(tret);
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}
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/*****************************Private*Routine******************************\
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* ResetPlayList
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*
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* Resets play order for the disc. Used to initialize/reset
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* the play list. This is done by reseting the doubly-linked list
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* of tracks in the g_Devices[...]->CdInfo.PlayList.[prevplay,nextplay]
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* pointers. All the tracks on the CD are stored in a singly linked list
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* pointed to by g_Devices[...]->CdInfo.AllTracks pointer.
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*
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*
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* History:
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* 18-11-93 - ricktu - Created
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*
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\**************************************************************************/
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VOID
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ResetPlayList(
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int cdrom
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)
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{
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PTRACK_INF t;
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PTRACK_PLAY temp, prev;
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//
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// Kill old play list
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//
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ErasePlayList( cdrom );
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EraseSaveList( cdrom );
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//
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// Duplicate each node in AllTracks and insert in-order
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// in SaveList list. The SaveList is the master which is
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// used for the playlist.
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//
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t = ALLTRACKS( cdrom );
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prev = NULL;
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while (t!=NULL) {
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temp = (PTRACK_PLAY)AllocMemory( sizeof(TRACK_PLAY) );
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temp->TocIndex = t->TocIndex;
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temp->min = 0;
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temp->sec = 0;
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temp->prevplay = prev;
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temp->nextplay = NULL;
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if (prev!=NULL) {
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prev->nextplay = temp;
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}
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else {
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SAVELIST( cdrom ) = temp;
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}
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prev = temp;
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t=t->next;
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}
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PLAYLIST( cdrom ) = CopyPlayList( SAVELIST( cdrom) );
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}
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void CreateNewEntry(int cdrom, DWORD key, PCDROM_TOC lpTOC)
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{
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/*
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** This is a new entry, fill it in but don't store it in the database.
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*/
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PTRACK_INF temp, temp1;
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PTRACK_PLAY pTempCurrTrack = CURRTRACK(cdrom);
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int i, num;
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int nSaveTrack = -1;
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if (CURRTRACK(cdrom))
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{
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nSaveTrack = CURRTRACK(cdrom)->TocIndex;
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}
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ErasePlayList( cdrom );
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EraseSaveList( cdrom );
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EraseTrackList( cdrom );
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g_Devices[ cdrom ]->CdInfo.iFrameOffset = NEW_FRAMEOFFSET;
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g_Devices[ cdrom ]->CdInfo.IsVirginCd = TRUE;
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g_Devices[ cdrom ]->CdInfo.Id = key;
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wsprintf( (LPTSTR)ARTIST( cdrom ), IdStr( STR_NEW_ARTIST ) );
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wsprintf( (LPTSTR)TITLE( cdrom ), IdStr( STR_NEW_TITLE ) );
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if (lpTOC)
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{
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NUMTRACKS( cdrom ) = num = lpTOC->LastTrack - lpTOC->FirstTrack + 1;
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}
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else
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{
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num = NUMTRACKS( cdrom );
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}
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/*
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** Create generic playlist, which is all audio tracks
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** played in the order they are on the CD. First, create
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** a singly linked list that contains all the tracks.
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** Then, create a double linked list, using the nodes of
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** from the single linked list for the play list.
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*/
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for( i = 0; i < num; i++ ) {
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/*
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** Create storage for track
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*/
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temp = (PTRACK_INF)AllocMemory( sizeof(TRACK_INF) );
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/*
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** Initialize information (storage already ZERO initialized)
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*/
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wsprintf( (LPTSTR)temp->name, IdStr( STR_INIT_TRACK ), i+1 );
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temp->TocIndex = i;
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temp->next = NULL;
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/*
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** Add node to singly linked list of all tracks
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*/
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if (i == 0) {
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temp1 = ALLTRACKS( cdrom ) = temp;
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}
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else {
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temp1->next = temp;
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temp1 = temp;
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}
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}
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/*
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** Generate generic play list (all tracks in order)
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*/
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ResetPlayList( cdrom );
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if (nSaveTrack > -1)
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{
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PTRACK_PLAY playlist;
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for( playlist = PLAYLIST(cdrom);
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playlist != NULL;
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playlist = playlist->nextplay )
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{
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if (playlist->TocIndex == nSaveTrack)
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{
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CURRTRACK(cdrom) = playlist;
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}
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}
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}
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}
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void RecomputePlayTimes(int dCdrom)
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{
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/*
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** Compute PLAY length
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*/
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PTRACK_PLAY pp;
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int m, s, mtemp, stemp;
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m = s = 0;
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for( pp = PLAYLIST(dCdrom); pp != NULL; pp = pp->nextplay )
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{
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FigureTrackTime( dCdrom, pp->TocIndex, &mtemp, &stemp );
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m+=mtemp;
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s+=stemp;
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pp->min = mtemp;
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pp->sec = stemp;
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}
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//also refresh the savelist
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for( pp = SAVELIST(dCdrom); pp != NULL; pp = pp->nextplay )
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{
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FigureTrackTime( dCdrom, pp->TocIndex, &mtemp, &stemp );
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pp->min = mtemp;
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pp->sec = stemp;
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}
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m += (s / 60);
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s = (s % 60);
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CDTIME(dCdrom).TotalMin = m;
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CDTIME(dCdrom).TotalSec = s;
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|
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/*
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** Make sure that the track time displayed in the LED and the
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** status bar is correct. If we have a current track and the
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** CD is playing or paused then everything is OK. Otherwise, we
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** have to reset the track times.
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*/
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if ( CURRTRACK( dCdrom ) != NULL ) {
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if ( STATE(dCdrom) & CD_STOPPED ) {
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CDTIME(dCdrom).TrackTotalMin = CURRTRACK( dCdrom )->min;
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CDTIME(dCdrom).TrackRemMin = CURRTRACK( dCdrom )->min;
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CDTIME(dCdrom).TrackTotalSec = CURRTRACK( dCdrom )->sec;
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CDTIME(dCdrom).TrackRemSec = CURRTRACK( dCdrom )->sec;
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}
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}
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else {
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CDTIME(dCdrom).TrackTotalMin = 0;
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CDTIME(dCdrom).TrackRemMin = 0;
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CDTIME(dCdrom).TrackTotalSec = 0;
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CDTIME(dCdrom).TrackRemSec = 0;
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}
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if (dCdrom == g_CurrCdrom)
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{
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UpdateDisplay( DISPLAY_UPD_DISC_TIME );
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|
}
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|
}
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|
|
|
BOOL GetInternetDatabase(int cdrom, DWORD key, BOOL fHitNet, BOOL fManual, HWND hwndCallback, void* pData)
|
|
{
|
|
if (!g_fBlockNetPrompt)
|
|
{
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|
if (fHitNet)
|
|
{
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ICDNet* pICDNet = NULL;
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if (SUCCEEDED(CDNET_CreateInstance(NULL, IID_ICDNet, (void**)&pICDNet)))
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{
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pICDNet->SetOptionsAndData((void*)g_pSink->GetOptions(),(void*)g_pSink->GetData());
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pICDNet->Download(g_Devices[ cdrom ]->hCd,g_Devices[cdrom]->drive,key,(LPCDTITLE)pData,fManual,hwndCallback);
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pICDNet->Release();
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}
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return FALSE; //couldn't find title just now, catch it on the callback
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}
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}
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|
|
if ( ReadEntry(cdrom, key))
|
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{
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return TRUE;
|
|
}
|
|
|
|
if (!fHitNet)
|
|
{
|
|
CreateNewEntry(cdrom, key, NULL);
|
|
RecomputePlayTimes(cdrom);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*****************************Private*Routine******************************\
|
|
* ReadEntry
|
|
*
|
|
* Try to read entry for new disc from database ini file.
|
|
* The section name we are trying to read is a hex
|
|
* value of the disc id. If the sections is found,
|
|
* fill in the data for the disc in the cdrom drive.
|
|
*
|
|
* This function uses over 16K of stack space !!
|
|
*
|
|
* History:
|
|
* 18-11-93 - ricktu - Created
|
|
*
|
|
\**************************************************************************/
|
|
BOOL
|
|
ReadEntry(
|
|
int cdrom,
|
|
DWORD dwId)
|
|
{
|
|
UINT i;
|
|
int numtracks, numplay;
|
|
PTRACK_INF temp, curr;
|
|
PTRACK_PLAY temp1, prev;
|
|
BOOL fRewriteEntry = FALSE;
|
|
LPCDDATA pData = NULL;
|
|
|
|
g_Devices[ cdrom ]->CdInfo.iFrameOffset = NEW_FRAMEOFFSET;
|
|
|
|
pData = (LPCDDATA)g_pSink->GetData();
|
|
if( !pData )
|
|
{
|
|
//Can't create the options object, so fail
|
|
return (FALSE);
|
|
}
|
|
|
|
pData->AddRef();
|
|
|
|
//
|
|
// Try to read in title from the options database
|
|
//
|
|
|
|
if (!pData->QueryTitle(dwId))
|
|
{
|
|
pData->Release();
|
|
return (FALSE);
|
|
}
|
|
|
|
//
|
|
// We found an entry for this disc, so copy all the information
|
|
// from the title database
|
|
|
|
LPCDTITLE pCDTitle = NULL;
|
|
|
|
if (FAILED(pData->LockTitle(&pCDTitle,dwId)))
|
|
{
|
|
pData->Release();
|
|
return FALSE;
|
|
}
|
|
|
|
_tcscpy(g_Devices[ cdrom ]->CdInfo.Title,pCDTitle->szTitle);
|
|
|
|
numtracks = pCDTitle->dwNumTracks;
|
|
|
|
// Make sure there is at least one track!!!
|
|
if (0 == numtracks)
|
|
{
|
|
fRewriteEntry = TRUE;
|
|
}
|
|
|
|
g_Devices[ cdrom ]->CdInfo.NumTracks = numtracks;
|
|
_tcscpy(g_Devices[ cdrom ]->CdInfo.Artist,pCDTitle->szArtist);
|
|
|
|
//
|
|
// Validate the stored track numbers
|
|
//
|
|
if (g_Devices[cdrom]->fIsTocValid)
|
|
{
|
|
int maxTracks; // validate the high point in database
|
|
|
|
maxTracks = g_Devices[cdrom]->toc.LastTrack;
|
|
|
|
if (numtracks > maxTracks)
|
|
{
|
|
// Current database contains invalid data
|
|
// this can result in the CD not playing at all as the end
|
|
// point is likely to be invalid
|
|
g_Devices[ cdrom ]->CdInfo.NumTracks
|
|
= numtracks
|
|
= maxTracks;
|
|
fRewriteEntry = TRUE;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Read the track list information
|
|
//
|
|
|
|
for (i=0, curr = NULL; i < (UINT)numtracks; i++)
|
|
{
|
|
temp = (PTRACK_INF)AllocMemory( sizeof(TRACK_INF) );
|
|
temp->TocIndex = i;
|
|
temp->next = NULL;
|
|
|
|
_tcscpy(temp->name,pCDTitle->pTrackTable[i].szName);
|
|
|
|
if (curr==NULL)
|
|
{
|
|
ALLTRACKS( cdrom ) = curr = temp;
|
|
|
|
} else
|
|
{
|
|
|
|
curr->next = temp;
|
|
curr = temp;
|
|
|
|
}
|
|
}
|
|
|
|
// Make sure there is at least one entry in TRACK list
|
|
if (ALLTRACKS(cdrom) == NULL)
|
|
{
|
|
fRewriteEntry = TRUE;
|
|
}
|
|
|
|
//
|
|
// if we detected a problem in the ini file, or the entry is an
|
|
// old format, rewrite the section.
|
|
//
|
|
|
|
if (fRewriteEntry)
|
|
{
|
|
//
|
|
// Generate generic play list (all tracks in order)
|
|
//
|
|
|
|
ResetPlayList( cdrom );
|
|
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Read play list (order) information and construct play list doubly
|
|
// linked list
|
|
//
|
|
|
|
numplay = pCDTitle->dwNumPlay;
|
|
if (numplay == 0)
|
|
{
|
|
numplay = pCDTitle->dwNumTracks;
|
|
}
|
|
|
|
prev = NULL;
|
|
|
|
int iCurrTrack = -1;
|
|
|
|
if (CURRTRACK(cdrom)!=NULL)
|
|
{
|
|
iCurrTrack = CURRTRACK(cdrom)->TocIndex;
|
|
}
|
|
|
|
EraseSaveList(cdrom);
|
|
ErasePlayList(cdrom);
|
|
|
|
for (int tr_index = 0; tr_index < numplay; tr_index++)
|
|
{
|
|
/*
|
|
** Assert that i is a valid index.
|
|
** ie 0 <= i <= (numtracks - 1)
|
|
*/
|
|
|
|
if (pCDTitle->dwNumPlay > 0)
|
|
{
|
|
i = pCDTitle->pPlayList[tr_index];
|
|
}
|
|
else
|
|
{
|
|
i = tr_index;
|
|
}
|
|
|
|
i = min( ((UINT)numtracks - 1), max( 0, i ) );
|
|
|
|
temp1 = (PTRACK_PLAY)AllocMemory( sizeof(TRACK_PLAY) );
|
|
temp1->TocIndex = (int)i;
|
|
temp1->min = 0;
|
|
temp1->sec = 0;
|
|
temp1->prevplay = prev;
|
|
temp1->nextplay = NULL;
|
|
|
|
if (prev==NULL)
|
|
{
|
|
SAVELIST( cdrom ) = temp1;
|
|
}
|
|
else
|
|
{
|
|
prev->nextplay = temp1;
|
|
}
|
|
prev = temp1;
|
|
}
|
|
|
|
// Make sure there is at least one entry in SAVED list
|
|
if (SAVELIST(cdrom) == NULL)
|
|
{
|
|
// Nope, use default list instead
|
|
ResetPlayList( cdrom );
|
|
}
|
|
|
|
PLAYLIST( cdrom ) = CopyPlayList( SAVELIST( cdrom ) );
|
|
|
|
//reset current track if necessary
|
|
if (iCurrTrack != -1)
|
|
{
|
|
BOOL fFound = FALSE;
|
|
|
|
for (PTRACK_PLAY pp = PLAYLIST(cdrom); pp != NULL; pp = pp->nextplay )
|
|
{
|
|
if ( pp->TocIndex == iCurrTrack )
|
|
{
|
|
fFound = TRUE;
|
|
break;
|
|
}
|
|
} //end for
|
|
|
|
if (fFound)
|
|
{
|
|
CURRTRACK(cdrom) = pp;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
** If the track was not found in the new track list and this
|
|
** cd is currently playing then stop it.
|
|
*/
|
|
if ( (STATE(cdrom) & (CD_PLAYING | CD_PAUSED)) )
|
|
{
|
|
|
|
SendDlgItemMessage( g_hwndApp, IDM_PLAYBAR_STOP,
|
|
WM_LBUTTONDOWN, 1, 0 );
|
|
|
|
SendDlgItemMessage( g_hwndApp, IDM_PLAYBAR_STOP,
|
|
WM_LBUTTONUP, 1, 0 );
|
|
}
|
|
|
|
CURRTRACK(cdrom) = PLAYLIST(cdrom);
|
|
}
|
|
}
|
|
|
|
/*
|
|
** If we were previously in "Random" mode shuffle the new
|
|
** playlist.
|
|
*/
|
|
if (!g_fSelectedOrder)
|
|
{
|
|
ComputeSingleShufflePlayList(cdrom);
|
|
}
|
|
|
|
RecomputePlayTimes(cdrom);
|
|
}
|
|
|
|
//unlock title data, don't persist it
|
|
pData->UnlockTitle(pCDTitle,FALSE);
|
|
pData->Release();
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* AddFindEntry
|
|
*
|
|
* Search the database file for the current disc, if found, read the
|
|
* information, otherwise, generate some default artist and track names etc.
|
|
* but don't store this in the database. A new entry is only added to the
|
|
* database after the user has used the "Edit Track Titles" dialog box.
|
|
*
|
|
* The design of this function is complicated by the fact that we have to
|
|
* support two previous attempts at generating CDplayer keys. Also, we try
|
|
* to support the MusicBox key format now that it is compatible with the
|
|
* new CDplayer format.
|
|
*
|
|
*
|
|
* History:
|
|
* 18-11-93 - ricktu - Created
|
|
*
|
|
\**************************************************************************/
|
|
VOID
|
|
AddFindEntry(
|
|
int cdrom,
|
|
DWORD key,
|
|
PCDROM_TOC lpTOC
|
|
)
|
|
{
|
|
/*
|
|
** Kill off old PlayList, Save lists if they exists.
|
|
*/
|
|
|
|
ErasePlayList( cdrom );
|
|
EraseSaveList( cdrom );
|
|
EraseTrackList( cdrom );
|
|
|
|
/*
|
|
** Check ini file for an existing entry
|
|
**
|
|
** First Look in cdplayer.ini using the new key, return if found
|
|
*/
|
|
|
|
// We initialize this field early, otherwise ReadEntry will not be
|
|
// able to save any new information (or lose invalid).
|
|
g_Devices[ cdrom ]->CdInfo.save = TRUE;
|
|
|
|
if ( ReadEntry(cdrom, key) )
|
|
{
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** Initialize these fields
|
|
*/
|
|
g_Devices[ cdrom ]->CdInfo.IsVirginCd = FALSE;
|
|
g_Devices[ cdrom ]->CdInfo.Id = key;
|
|
|
|
/*
|
|
** dstewart: Try to get the info from the net
|
|
*/
|
|
if ( GetInternetDatabase(cdrom, key, TRUE, FALSE, GetParent(g_hwndApp),NULL) )
|
|
{
|
|
return;
|
|
}
|
|
/*
|
|
** end dstewart
|
|
*/
|
|
|
|
CreateNewEntry(cdrom,key,lpTOC);
|
|
}
|